Moved code into src folder. Added build for component library.

src/components/layout/Header.js

@@ -0,0 +1,31 @@
+import { Column, Icon, Row, Text } from 'react-basics';
+import Link from 'next/link';
+import LanguageButton from 'components/input/LanguageButton';
+import ThemeButton from 'components/input/ThemeButton';
+import SettingsButton from 'components/input/SettingsButton';
+import Icons from 'components/icons';
+import styles from './Header.module.css';
+
+export function Header() {
+  return (
+    <header className={styles.header}>
+      <Row className={styles.row}>
+        <Column>
+          <Link href="https://umami.is" target="_blank" className={styles.title}>
+            <Icon size="lg">
+              <Icons.Logo />
+            </Icon>
+            <Text>umami</Text>
+          </Link>
+        </Column>
+        <Column className={styles.buttons}>
+          <ThemeButton tooltipPosition="bottom" />
+          <LanguageButton tooltipPosition="bottom" menuPosition="bottom" />
+          <SettingsButton />
+        </Column>
+      </Row>
+    </header>
+  );
+}
+
+export default Header;